They started this morning and by mid-afternoon they felt like bad period cramps. I decided to go to the ER to be safe, rather then sorry. They listened to the heartbeat (which was fine) and asked a bunch of questions etc. And the doc said at 14 weeks you are too late to have a misscarriage and too early for pre-term labor....he said this middle time is really a time where nothing happens....and that it is probably stretching ligaments and maybe from being more active lately. So I am really more relaxed....I was worried!